Disable SVE support for now. It's not built anyway as arm_neon_sve_bridge.h
is missing but when enabled it runs into a build issue. Looking into the
error I think the issue is with svt-av1. I opened a bug report either way.
Index: Makefile
===================================================================
RCS file: /cvs/ports/multimedia/svt-av1/Makefile,v
retrieving revision 1.19
diff -u -p -u -p -r1.19 Makefile
--- Makefile 28 Jan 2025 11:22:03 -0000 1.19
+++ Makefile 30 Mar 2025 04:58:38 -0000
@@ -30,6 +30,12 @@ MODULES= devel/cmake
BUILD_DEPENDS+= devel/nasm
.endif
+# LLVM ERROR: Invalid size request on a scalable vector.
+# with 16, 18, 19
+.if ${MACHINE_ARCH} == "aarch64"
+CONFIGURE_ARGS+=-DENABLE_SVE=OFF
+.endif
+
NO_TEST= Yes
.include <bsd.port.mk>
